The Thermochemistry of the Gas Phase Equilibrium I 2 + C 6 H 5 CH 3 [UNK] C 6 H 5 CH 2 I + HI and the Heat of Formation of the Benzyl Radical 1
โ Scribed by Walsh, Robin; Golden, David M.; Benson, Sidney W.
- Book ID
- 127390000
- Publisher
- American Chemical Society
- Year
- 1966
- Tongue
- English
- Weight
- 792 KB
- Volume
- 88
- Category
- Article
- ISSN
- 0002-7863
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๐ SIMILAR VOLUMES
The gas-phase dehydrogenation of cyclopentene to cyclopentadiene catalyzed by iodine in. the range 178-283'C has been found to obey a rate law consistent with the slow rate-determining step, I + c-C5Hs --t HI + c-C5H, , log [ka/(l moleL1 sec-')I = 10.25 \* 0.08 -(12.26 f 0.18)/0, where 0 = 2.303RT i
The kinetics of the gas-phase dehydrogenation of cyclopentane to cyclopentene is found to be consistent with a slow attack by a n I atom (step 4, text) on cyclopentane in the range 282-382OC. The measured rate constants fit the Xrrhenius equation, log k, = 11.95 f 0.08 -(24.9 f 0.23)/0 1 mole-l sec-